Create a real issue (punchlist/QC item) in ACC Build's Issues module via the APS Construction Issues v1 API. Returns the ACC-generated issue_id which can be linked back to a model URN or a detected clash. When to use: detect_clashes flagged a critical clash, or a field user reports a QC defect, a...
Part of the ScanBIM MCP server.
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AI agents use acc_create_issue to create or modify resources in ScanBIM MCP. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call acc_create_issue repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach ScanBIM MCP.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"acc_create_issue": {
"limits": [
{
"counter": "acc_create_issue_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full ScanBIM MCP policy for all 19 tools.
These attack patterns abuse exactly the kind of access acc_create_issue gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Create a real issue (punchlist/QC item) in ACC Build's Issues module via the APS Construction Issues v1 API. Returns the ACC-generated issue_id which can be linked back to a model URN or a detected clash. When to use: detect_clashes flagged a critical clash, or a field user reports a QC defect, and you want to track it in ACC for assignment and closeout. When NOT to use: you want to file a formal information request between trades — use acc_create_rfi instead. You want a note on a model element — that is a markup, not an issue. APS scopes: data:read data:write account:read Rate limits: APS default ~50 req/min per app per endpoint; Model Derivative translation jobs ~60 req/min; OSS uploads size-limited per file to 100MB for direct upload, larger via resumable. Errors: 401 APS token expired/invalid — refresh; 403 scope or resource permission denied (app not provisioned for the project's ACC account); 404 project_id not found — check the ID (strip any leading 'b.'); 429 rate limited — backoff and retry; 5xx APS upstream outage — retry with jitter. Side effects: NON-IDEMPOTENT. Creates a new ACC issue each call (repeated calls create duplicates). Inserts a row into D1 usage_log.. It is categorised as a Write tool in the ScanBIM MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the ScanBIM MCP server in PolicyLayer and add a rule for acc_create_issue: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ScanBIM MCP. Nothing to install.
acc_create_issue is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the acc_create_issue rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for acc_create_issue. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
acc_create_issue is provided by the ScanBIM MCP server (https://scanbim-mcp.itmartin24.workers.dev/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 19 ScanBIM MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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